There is no certain date yet for the release of Black Mirror season six on Netflix. Even the fifth season was delayed as a result of a complication in the production of Bandersnatch. The fifth season stopped at the third episode for like six months before they could later complete the six episodes that were meant to be in the season.
Most likely, we might need to wait till the end of the second half of the year 2020 before the Black Mirror could ever surface again. Brooker also hinted that the next season of the Black Mirror is yet unknown to how it’s going to be. He said it could be one-offs, an ongoing story, or a spin-off. So there might be a bit of delay before season six is released if at all the show gets renewed again, which most likely will get renewed. So, let’s keep the wait. I hope something is going to drop soon.
Most likely, season 6 of Black Mirror will be released on Netflix in the summer or fall of 2020. The show has not positively been renewed for a sixth season. However, as long as creators, Charlie Booker, and Annabel Jones want to make new episodes, Netflix will be more than happy to carry the series.
Booker has since expressed sincere interest in creating new episodes for the show. That being said, reviews for season five have not been as favorable.